[Iaude] MPEC B66: COMET P/2019 A7 (PANSTARRS)
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Wed Jan 23 16:25:17 EST 2019
M.P.E.C. 2019-B66 Issued 2019 Jan. 23, 20:35 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET P/2019 A7 (PANSTARRS)
Y. Ramanjooloo (F51) reported that this object had a FWHM of ~1".6
(compared to 1".2 for nearby stars) and a fuzzy extension of ~3" in P.A. 290.
R. Weryk and R. Wainscoat (568) noted that the object had a FWHM of 0".91
(compared to 0".66 +/- 0".02 for nearby stars) and evidence for a faint tail,
extending to the northwest for more than 5". R. S. McMillan (691) noted faint
cometary features, that were too faint to measure precisely, on several nights.
Observations:
PK19A070 C2017 10 03.43712500 31 58.681+33 23 23.36 21.1 GVEB066F51
PK19A070 C2017 10 03.44861100 31 58.067+33 23 21.02 21.1 GVEB066F51
PK19A070 C2017 10 03.46010300 31 57.464+33 23 18.54 21.7 GVEB066F51
PK19A070 C2017 10 03.47156400 31 56.871+33 23 16.09 21.8 GVEB066F51
PK19A070 C2017 10 27.27711900 14 26.157+30 46 48.54 21.5 GVEB066F51
PK19A070 C2017 10 27.28809400 14 25.774+30 46 42.85 21.7 GVEB066F51
PK19A070 C2017 10 27.29910600 14 25.387+30 46 37.14 21.8 GVEB066F51
PK19A070 C2017 10 27.31012900 14 25.018+30 46 31.35 21.7 GVEB066F51
PK19A070 C2017 11 09.37853200 09 29.350+28 45 18.41 22.1 GVEB066F51
PK19A070 C2017 11 09.39043400 09 29.157+28 45 11.38 21.8 GVEB066F51
PK19A070 C2017 11 09.40228400 09 28.991+28 45 04.65 21.5 GVEB066F51
PK19A070 C2017 11 09.41417200 09 28.817+28 44 57.86 21.4 GVEB066F51
PK19A070* C2019 01 08.37792 08 25 17.155+10 02 51.25 20.4 wUEB066F51
PK19A070 C2019 01 08.38898 08 25 16.570+10 02 49.31 20.6 wUEB066F51
PK19A070 C2019 01 08.40002 08 25 15.978+10 02 47.49 20.4 wUEB066F51
PK19A070 C2019 01 08.41110 08 25 15.386+10 02 45.70 20.4 wUEB066F51
PK19A070 ^C2019 01 09.50094208 24 18.003+09 59 45.71 20.24GVEB066568
PK19A070 ^C2019 01 09.50212108 24 17.939+09 59 45.52 20.24GVEB066568
PK19A070 ^C2019 01 09.50330108 24 17.874+09 59 45.33 20.31GVEB066568
PK19A070 9C2019 01 11.03201 08 22 56.57 +09 55 42.9 20.2 GUEB066G40
PK19A070 9C2019 01 11.04973 08 22 55.48 +09 55 40.1 UEB066G40
PK19A070 KC2019 01 11.05115 08 22 55.33 +09 55 39.8 19.7 RrEB066106
PK19A070 KC2019 01 11.05452 08 22 55.21 +09 55 37.0 20.1 RrEB066106
PK19A070 C2019 01 11.27504 08 22 43.39 +09 55 05.7 20.1 GVEB066I52
PK19A070 C2019 01 11.27881 08 22 43.30 +09 55 04.8 20.8 GVEB066I52
PK19A070 C2019 01 11.28428 08 22 42.91 +09 55 04.6 20.4 GVEB066I52
PK19A070 C2019 01 11.28874 08 22 42.70 +09 55 03.3 20.6 GVEB066I52
PK19A070 KC2019 01 12.04778 08 22 01.53 +09 53 08.8 20.1 RqEB066L27
PK19A070 KC2019 01 12.06768 08 22 00.42 +09 53 05.4 20.3 RqEB066L27
PK19A070 KC2019 01 12.08757 08 21 59.28 +09 53 02.5 19.9 RqEB066L27
PK19A070 HC2019 01 12.31146 08 21 47.30 +09 52 30.6 19.9 RoEB066691
PK19A070 HC2019 01 12.31924 08 21 46.89 +09 52 29.3 19.9 RoEB066691
PK19A070 HC2019 01 12.32703 08 21 46.42 +09 52 28.2 19.8 RoEB066691
PK19A070 C2019 01 12.48054 08 21 37.85 +09 52 05.3 20.0 GVEB066I52
PK19A070 C2019 01 12.48481 08 21 37.67 +09 52 05.0 19.9 GVEB066I52
PK19A070 C2019 01 12.48927 08 21 37.36 +09 52 04.4 19.9 GVEB066I52
PK19A070 1C2019 01 12.57018 08 21 33.27 +09 51 57.0 VEB066Q62
PK19A070 1C2019 01 12.57334 08 21 33.10 +09 51 56.5 VEB066Q62
PK19A070 1C2019 01 12.57649 08 21 32.92 +09 51 55.5 19.6 GVEB066Q62
PK19A070 1C2019 01 13.63649 08 20 34.83 +09 49 24.9 VEB066Q62
PK19A070 1C2019 01 13.64122 08 20 34.55 +09 49 24.3 19.9 GVEB066Q62
PK19A070 KC2019 01 14.95529608 19 22.20 +09 46 17.8 20.0 GVEB066L01
PK19A070 KC2019 01 14.97688108 19 21.00 +09 46 15.3 19.9 GVEB066L01
PK19A070 HC2019 01 15.42716 08 18 55.84 +09 45 17.8 20.2 RoEB066691
PK19A070 HC2019 01 15.44191 08 18 55.03 +09 45 15.3 20.0 RoEB066691
PK19A070 HC2019 01 15.45660 08 18 54.16 +09 45 13.6 20.4 RoEB066691
PK19A070 KC2019 01 17.20300 08 17 17.18 +09 41 33.5 19.9 RoEB066691
PK19A070 KC2019 01 17.20974 08 17 16.82 +09 41 32.9 20.1 RoEB066691
PK19A070 KC2019 01 17.21652 08 17 16.42 +09 41 31.6 20.1 RoEB066691
PK19A070 C2019 01 17.27775 08 17 12.89 +09 41 24.6 20.3 GVEB066I52
PK19A070 C2019 01 17.28270 08 17 12.61 +09 41 23.7 19.7 GVEB066I52
PK19A070 C2019 01 17.28723 08 17 12.40 +09 41 22.9 19.7 GVEB066I52
PK19A070 C2019 01 17.29836 08 17 11.73 +09 41 22.0 20.6 GVEB066I52
Observer details:
106 Crni Vrh. Observer S. Maticic. 0.6-m f/3.3 Deltagraph + CCD.
568 Mauna Kea. Observers R. Wainscoat, D. Woodworth, A. Petric. Measurers
R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observers R. A. Mastaler,
J. V. Scotti, R. S. McMillan. 0.9-m f/3 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, L. Denneau,
J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m
Ritchey-Chretien + CCD.
G40 Slooh.com Canary Islands Observatory. Observer B. Lutkenhoner. 0.5-m
f/6.8 Corrected Dall-Kirkham + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers B. M. Africano,
D. C. Fuls. Measurers B. M. Africano, E. J. Christensen, G. A. Farneth,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector
+ CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, F. Valentine.
Measurer K. Korlevic. 1.0-m f/2.9 reflector + CCD.
L27 29PREMOTE Observatory, Dauban. Observer J.-F. Soulier. 0.20-m f/4
Newtonian reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
Orbital elements:
P/2019 A7 (PANSTARRS)
Epoch 2018 Jan. 2.0 TT = JDT 2458120.5
T 2018 Jan. 8.32972 TT MPCW
q 2.6760267 (2000.0) P Q
n 0.17309771 Peri. 119.60838 +0.72375623 -0.62139623
a 3.1886621 Node 280.52535 +0.47888018 +0.76538701
e 0.1607682 Incl. 17.77068 +0.49684071 +0.16747969
P 5.69
>From 53 observations 2017 Oct. 3-2019 Jan. 17, mean residual 0".4.
P/2019 A7 (PANSTARRS)
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Sept. 12.15086 TT MPCW
q 2.6737745 (2000.0) P Q
n 0.17294494 Peri. 118.76995 +0.73384142 -0.60943413
a 3.1905396 Node 280.42869 +0.46651628 +0.77324454
e 0.1619679 Incl. 17.76732 +0.49380090 +0.17516541
P 5.70
>From 53 observations 2017 Oct. 3-2019 Jan. 17, mean residual 0".4.
P/2019 A7 (PANSTARRS)
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5
T 2018 Jan. 7.77078 TT MPCW
q 2.6752539 (2000.0) P Q
n 0.17318433 Peri. 119.46865 +0.72527848 -0.61959186
a 3.1875988 Node 280.52319 +0.47696568 +0.76658612
e 0.1607307 Incl. 17.77396 +0.49646235 +0.16867617
P 5.69
>From 53 observations 2017 Oct. 3-2019 Jan. 17, mean residual 0".4.
Ephemeris:
P/2019 A7 (PANSTARRS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2018 12 24 08 36 51.1 +10 56 46 2.1659 3.0062 142.5 11.5 20.0
...
2019 01 08 08 25 36.7 +10 03 56 2.0909 3.0294 159.0 6.7 19.9
...
2019 01 16 08 18 24.2 +09 44 05 2.0763 3.0418 166.6 4.3 19.9
...
2019 01 22 08 12 47.7 +09 32 49 2.0779 3.0511 169.7 3.3 19.9
2019 01 23 08 11 51.6 +09 31 13 2.0792 3.0527 169.8 3.3 19.9
2019 01 24 08 10 55.7 +09 29 42 2.0808 3.0543 169.7 3.3 19.9
...
2019 01 30 08 05 25.9 +09 22 10 2.0968 3.0636 166.6 4.3 20.0
...
2019 02 07 07 58 37.3 +09 15 52 2.1347 3.0761 159.1 6.6 20.0
...
2019 02 22 07 48 42.1 +09 12 20 2.2523 3.0997 143.0 11.1 20.2
Gareth V. Williams (C) Copyright 2019 MPC M.P.E.C. 2019-B66
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